...but, while we're on the topic, unless it's British I don't see much getting canceled. British pop culture will essentially freeze and be nostalgia-based; it's going to be a long time before anyone in the reclaimed UK is thinking about making movies or writing songs. The British diaspora will eventually assimilate into the countries they fled to, and probably produce works that talk about the loss of home, holding onto the idea of "Britain," etc.
Outside of the UK, I'd imagine there might be a delay in releasing things related to viruses, apocalypse, societal collapse, etc. much like OTL after 9/11. But eventually, much like 9/11, there'll be a rush to homage, parody, and recreate the outbreak and the collapse of the UK.